The writers of this drama were extremely skillful. It is a "but for" drama that continues to weave tales that can be answered by the "but for" statement. Although extremely lengthy for a daily drama there were enough cliff hangers to keep the viewer interested and "hooked". Also the introduction of new characters and new life situations kept the drama from being redundant. The female lead was a poor choice for role but eventually she grows on you. The two male leads are extremely handsome and talented. What really kept me drawn to this drama was the mother who was mentally challenged. She played that role impeccably and so believably. Her performance was award winning. A drama to watch daily with multiple episodes to maintain interest -- otherwise you will become bored because there are 159 episodes and want to skip episodes. Good family drama.